Connectivity of superior temporal sulcus during target detection

Martin Pail*, Petra Dufková, Radek Mareček, Jana Zelinková, Michal Mikl, Daniel Joel Shaw, Milan Brázdil

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The aim of the current research was to study functional connectivity (FC) of the right superior temporal sulcus (rSTS) during visual target stimulus processing. This structure is presumed to be crucial in social cognition, but evidently participates in target detection as well. Twenty subjects participated in functional magnetic resonance examination for studying FC. We used psychophysiological interaction (PPI) analysis of data acquired during the visual oddball task. During the visual oddball task rSTS had increased connectivity bilaterally with structures involved in memory operations (mesiotemporal cortices and basal ganglia) and evaluative processing related to decision making (left anterior cingulate cortex). Moreover, we revealed decreased connectivity of rSTS with structures involved in attentional processes (right dorsolateral prefrontal cortex (DLPFC) and the posterior area with bilateral parietal cortex). Based on our results we hypothesize that in the detection of rare events, during visual information processing, rSTS is involved within neuronal networks related to attention, but also at later stages of stimuli processing.

Original languageEnglish
Pages (from-to)29-37
Number of pages9
JournalJournal of Psychophysiology
Issue number1
Publication statusPublished - 15 Sept 2015


  • Connectivity
  • FMRI
  • Oddball task
  • Psychophysiological interaction
  • Superior temporal sulcus


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